MAN0878-09-EN_XLE_XLT_UserManual
A u g u s t 2 3 , 2 0 1 8
P a g e 26 | 158
5.3
Wiring
The figures along with Table 5.1 and Table 5.2 show how the MJ1 and MJ2 serial port pins are
assigned.
Figure 5.1
–
MJ1 & MJ2 Serial Ports
Table 5.1
–
MJ1 Serial Port Pin Assignments
Pin
Signal
Signal Description
Direction
1
RX/TX+
RS-485 Receive/Transmit Positive
In/Out
2
RX/TX
−
RS-485 Receive/Transmit Negative
In/Out
3
CTS
1
RS-232 Clear to Send
Out
4
RTS
1
RS-232 Request to Send
In
5
+5*
+5 VDC 60mA max
Out
6
0V
Ground
−
7
TD
1
RS-232 Transmit Data
In
8
RD
1
RS-232 Receive Data
Out
Table 5.2
–
MJ2 Serial Port Pin Assignments
Pin Signal
Signal Description
Direction
1
RX+
RS-485 Receive Positive
In
2
RX
−
RS-485 Receive Negative
In
3
TX+
RS-485 Transmit Positive
Out
4
TX
−
RS-485 Transmit Negative
Out
5
+5*
+5 VDC 60mA max
Out
6
0V
Ground
−
7
TD
1
RS-232 Transmit Data
In
8
RD
1
RS-232 Receive Data
Out
Signals are labeled for connection to a DTE device.
8
1
NOTE:
MJ1 and MJ2 look the
same but have different pin
assignments and functions.
•
* +5 on XLE Rev E and later
•
* +5 on all revisions XLT
MJ2 Pinouts in Full and Half Duplex Modes
Pin
MJ1 Pins
MJ2 Pins
Signal
Direction
Signal
Direction
8
TXD
OUT
TXD
OUT
7
RXD
IN
RXD
IN
6
0V
Ground
0V
Ground
5
*
+5 60mA
OUT
+5 60mA
OUT
4
RTS
OUT
TX-
OUT
3
CTS
IN
TX+
OUT
2
RX- / TX-
IN / OUT
RX-
IN
1
RX+ / TX+
IN / OUT
RX+
IN
1
8
*
+5Vdc 60mA Max
Pin
MJ2 Pins
Signal
Direction
8
TXD
OUT
7
RXD
IN
6
0V
Ground
5
*
+5 60mA
OUT
4
TX-
OUT
3
TX+
OUT
2
RX-
IN
1
RX+
IN
1
8
MJ2 Full Duplex Mode
MJ2 Half Duplex Mode
Pin
MJ2 Pins
Signal
Direction
8
TXD
OUT
7
RXD
IN
6
0V
Ground
5
*
+5 60mA
OUT
4
TX-
OUT
3
TX+
OUT
2
TX-/RX-
IN/OUT
1
TX+/RX+
IN/OUT
1
8
*
+5 VDC 60mA Max
